Dear Bruno and Friends,
I found these statements:
http://www.imaph.tu-bs.de/qi/concepts.html#TP
Teleportation with purely classical means is impossible, which is precisely
the observation making the theory of Quantum Information a new branch of
Information Theory. This makes it all the more surprising that by using the
quantum mechanical correlations (entanglement) in an auxiliary pair of
systems, a classical channel may be upgraded to do precisely this
"impossible task". This new process, first published in a paper by Bennett
et al. [BB93], is referred to as "entanglement enhanced (or quantum)
teleportation" or sometimes just plain "teleportation". It has become one of
the basic operations of Quantum Information Theory. First experimental
realizations also exist [BP97].
and
http://www.research.ibm.com/quantuminfo/teleportation/
Until recently, teleportation was not taken seriously by scientists, because
it was thought to violate the uncertainty principle of quantum mechanics,
which forbids any measuring or scanning process from extracting all the
information in an atom or other object. According to the uncertainty
principle, the more accurately an object is scanned, the more it is
disturbed by the scanning process, until one reaches a point where the
object's original state has been completely disrupted, still without having
extracted enough information to make a perfect replica. This sounds like a
solid argument against teleportation: if one cannot extract enough
information from an object to make a perfect copy, it would seem that a
perfect copy cannot be made.
***
also see:
http://www.informatics.bangor.ac.uk/~schmuel/tport.html
Kindest regards,
Stephen
----- Original Message -----
From: "Stephen Paul King" <stephenk1.domain.name.hidden>
To: <everything-list.domain.name.hidden>
Sent: Thursday, November 28, 2002 10:52 AM
Subject: Is classical teleportation possible?
> Dear Bruno,
>
> I followed the UDA link and read the post and fell flat on my face
when
> I read the term "classical teleportation". I would like to know what is
the
> theoretical basis of a belief that "classical teleportation" is even
> possible? I can accept TM emulability for the sake of the argument, but
the
> notion of classical teleportation is something that is equivalent to
> perpetual motion machines in my thinking.
> Does there exist an on-line explanation of "classical teleportation"
> that I could read?
>
> Kindest regards,
>
> PS. How far have you considered Chu transforms?
>
> ----- Original Message -----
> From: "Marchal Bruno" <marchal.domain.name.hidden>
> To: <everything-list.domain.name.hidden>
> Sent: Thursday, November 28, 2002 9:56 AM
> Subject: RE: Re: The number 8. A TOE?
>
>
> > Ben Goertzel <ben.domain.name.hidden> wrote:
> >
> > >> BG: You seem to be making points about the limitations
> > >> >of the folk-psychology notion of identity, rather than about the
> actual
> > >> >nature of the universe...
> > >>
> > >>
> > >> BM: Then you should disagree at some point of the reasoning, for the
> > >> reasoning is intended, at least, to show that it follows from
> > >> the computationalist hypothesis, that physics is a subbranch of
> > >> (machine) psychology, and that the actual nature of the universe
> > >> can and must be recovered by machine psychology.
> > >
> > >BG; I tend to think that "physics" and "machine psychology" are
limiting
> terms
> > >that will be thrown off within future science, in favor of a more
unified
> > >perspective.
> >
> >
> > Sure, but before having that future science we must use some terms.
> > As I said in the first UDA posting
> http://www.escribe.com/science/theory/m1726.html, it is really the
> > proof that "physics is a branch of psychology" which provides the
> > explanation of such terms. Basically machine psychology is given by all
> > true propositions that machine or collection of machine can prove
> > or bet about themselves.
> > Eventually it is given by the Godel Lob logic of provability with
> > their modal variants. I take the fact that a consistent machine
> > cannot prove its own consistency as a psychological theorem.
> > Consciousness can then be approximated by the unconscious (automated,
> > instinctive) anticipation of self-consistency.
> >
> >
> >
> > >Perhaps, from this more unified perspective, a better approximation
will
> be
> > >to say that "physics" and "machine psychology" are subsets of each
other
> > >(perhaps formally, in the sense of hypersets, non-foundational set
> theory,
> > >who knows...)
> >
> > Perhaps. I guess a sort of adjunction, or a Chu transform? I don't know.
> >
> >
> > >
> > >
> > >> Physics is taken as what is invariant in all possible (consistent)
> > >> anticipation by (enough rich) machine, and this from the point of
> > >> view of the machines. If arithmetic was complete, we would get
> > >> just propositional calculus. But arithmetic is incomplete.
> > >> This introduces nuances between proof, truth, consistency, etc.
> > >> The technical part of the thesis shows that the invariant
propositions
> > >> about their probable neighborhoods (for
> > >> possible anticipating machines) structure themtselves into a sort
> > >> of quantum logic accompagned by some renormalization problem (which
> > >> could be fatal for comp (making comp popperian-falsifiable)).
> > >> This follows from the nuances which are made necessary by the
> > >> Godel's incompleteness theorems, but also Lob and Solovay
> > >> fundamental generalization of it. But it's better grasping first
> > >> the UDA before tackling the AUDA, which is "just" the translation
> > >> of the UDA in the language of a "Lobian" machine.
> > >
> > >Could you point me to a formal presentation of AUDA, if one exists?
> > >I have a math PhD and can follow formal arguments better than verbal
> > >renditions of them sometimes...
> >
> >
> > You can click on "proof of LASE" in my web page, and on Modal Logic
> > if you need. The technical part of my thesis relies on the
> > work of Godel, Lob, Solovay, Goldblatt, Boolos, Visser. Precise
> > references are in my thesis (downloadable, but written in french).
> > You can also look at the paper "Computation, Consciousness and the
> Quantum".
> >
> > When I will have more time I can provide more explanations.
> >
> > Let me insist that that technics makes much more sense once you get
> > the more informal, but nevertheless rigorous, UDA argument.
> >
> > Regards,
> >
> > Bruno
> >
> >
> >
> >
>
>
>
Received on Thu Nov 28 2002 - 12:14:31 PST